Antifriction-bearing mounting



Patented Y( May y4, 1.92.6. I

UNITED STATES l1,583,562; PATENT. OFFICE.

v:KARL A. STENNER, or rARNmGTON, CONNECTICUT, AssIGNoR To T1115:` sKAY-ms BALL BEARING COMPANY, or HARTFORD, CONNECTICUT, A CORPORATION or CON- NECTICUT.

' ANTmRICTIoN-REARING 'NONTINQ/ l Application led January 2, 1925. Serial No. 52.

To all whom it may concern.' 5

Be it known that I, KARL A. STENNER, a

lcitizen of the United States, residing at- Farmington, Connecticut, have invented cer- 5 'tain new and useful Improvementsin Anti? friction-Bearing Mountings, of which the following is a specification. j f

The invention relates to anti-friction bearp ingmountings and to the method of assembling parts of suCh-mountings.

Among the objects of this invention is tol ``provide a"flexible structure partioularly de'- -sgned for use in adapter bearmgs and es peeially those in which two bearings are lo' cated on a shaft in spaced relationby means lof a pair of taper adaptersleeves articu-A .lated-Or flexibly connected together. One of -the elements of this structure is a nut artieuA i or flexibly connected toan antiefrietion o' ring, whereby when the parts' are vfloosely assembledshocks either of transporttion, careless handling or-,improper ap-l pli'eationto the shaft will not iam'the bearl ing ring up on the vincline of the 'adapter 'sleeve. This .conneotion also' enables the ready removal of the' bearing'ringfrom the sleeve, or the `loosening of the ring on the sleeve to permit the sleeve to expand.

The 'details of',y construction and the method of assembly',l notonly of the individal elements but of the entire structure upon the shaft, will be more readily under. stood by specific reference to, the accom--v panying drawings which show by v way of illustration some lforms of practicable emr.

Fig. 5, shows in longitudinal section anll other form of sleeve, and

plane of the 'line 6--6 of 5. Q

Although' th drawings show the `bearings mounted '1n a present prevailing typegof ent that the structure isusefulin connection with other -forms of housin or support for the outer rings, 2, of the' earings, and it is also apparent that some of the parts are useful yfor the mountingl of a single bearing. The partioularform of the pirteiofmy inings, 5, in the ends ofthe box. Outwardly tion, will not be vfurther herein fenlnrgedeg vbearings Within the box, l namely, .that there :In'a be, I aterthe'parts l are ,set up and loc ed on-the 'shaft,suioient clearance on details of construoi Fig. 6, a Cross section thereof at about the lineshaft hanger box, `l, yetl it is quite' appar-' vention embodied in the illustrative example shownxin Vthe drawingaxfare 'designed with special reference'for`mountinga lineshaft, i as 3,.to.a han er frame (not shown.) throu hl the hanger.l ox," 1,. which constitutes t e 00 housin or mountin "for the outer rings, 2,' i

'of the earings.- 'l` e-bearings whi h have been found most suitable` for thisdesign are the, single row deepfgroovepe, there beingtwo of these emp oyed in t e present oonstruction,one being located upon each of the respective sides of the support orv frame engaging devices, 4c, formed on-the outer surface of the box. The outer surfaces of the Outer rings of these bearings are substantially cylindrical and lare. preferably 'mounted with a nice sucking-fit in suitably 'formed outwardly directed cylindrical housof the box, andr surrounding certain of the parts presently .to be described', are closure plates, 6,. the particular oonstrution plof. l which, forming no part of the present inten-p.,

upon. u. l From the standpoint of the man 'w o mounts a-box of this vtype.'uponfthe line-Yi'.

shaft,'quite an important item is the dom for longitudinal movementof these 'two both sides of each ofthe outer races 'to ao- 'commodatej the normal axial or longitudinal movementbfythe lineshaft, arising from QQ '.various causes, among whioh may be men tioned vibration, changes oftemperature and v wearing'down of, the 'collars, (not shown) which' take the thrust oi the shaft. when this has a` tendency tolongitudinal movement. Another important itein Of equal interest, tothe millwright who installs the mounting 'and to the manufacturer who prodiies it, is'thatthe entire'stuc'ture as it is {linished and set up -vwhere-m'ade, 100 shall withoutread 'ustment of the'parts after transportation an unpaeking,',be'capable of being placed lin position on the lineshaft and when brought to its proper location in respect of theshaft and the hanger frame be readily and easily locked Tin such osition. The inner rings, 7 -of the ball earings have slightly 4tapering bores, 8, for fitting uponthetapering end, 9, of the ompresei 1e' adapter sleeve, 10.4 This taper bore 11W on 'l Lacasse and taper adapter sleeve with the outwardly `adapter sleeve illustrated is pansion and a slot, 19,

permitting a small amount of. compressibility.

` The slot, 19, is produced by stamping or y extending screw threaded end,A 11, is ofa well known type in so far as these features of squeezing the sleeve into `a tight lit on the shaft and also wedging the inner ring securely in position are concerned.

Many attempts have been made, a few of which operated more o1'. less, but none of which have proved a commercial success, to connect two adapter sleeves together in spaced relation, and in such manner as to prevent relative rotation ot th'esleeves and spacer. The present invention provides a pair of adapter sleeves flexibly connected to a spacer, 12. Flexible may not be the exact word to convey alll the meanings intended,

neither would articulate, but each sleeve, 10,

is so connected to the spacer, 12, that itran wobble and also move angularly `a slight amount, but enough, however, Ito permit each sleeve to function properly and individually and be held .from rotation'and movement longitudinally of the'shaft independently of the'other sleeve. Y

The spacer in the present showing is of larger internal diameter or bore than thc bore of the sleeves` so that it will not interfere with the passage of thestructure longi.

tudinally o f the shaft in ,mounting The inner ends of the adapter sleeves, 10-10, in'

the present illustration the larger ends, and the ends of the -spacer'where these abut overlap one another andare formed with mating interlocked shoulders, 13-14. The spacer, 12, is preferably formed from a piece of tubing, the ends, 15, of which are bent outwardly in some suitable mannerhas for instance in a forming press. IThe back face of which bend constitutes the shoulder, 15. These shoulders are-in the illustration formed on the outer side of the spacer and` when the parts are assembled fit within the recess, 16, formed in the inner bore of the adapter sleeve, 1`O,""aV wall of such recess, 16, forming the shoulder, 13.' The compressibility ofthe permitted by means of longitudinal slots. In the present extends from end to illustration a slot, 17,

end, and upon the opposite side* thereV 1s a narrowerl slot, 18, extending from about the region o f the screw thread throughoutlthe body portion. With .the parts made-as just described, the adapter and spacer. are preferably assembled in a press, sleeves permitting a certain amount of Aexformed'in the end of the spacer cutting out a tongue or lip, 20., which, after the parts are assembled, is sprung outwardly intothe slot, 17, of the adapterfor preventing any great amount of relative angular movement,and the'presence `of this 11p, 20, inv the slot, 18, according to the slots'of -the .l

' its `width, either prevent o r'limit, asis desired, .such angular movement.

was'explamed above, asmall amount of rela-A In most cases', as

tive angular movement is desirable, the amount of such movement being determined by the difference between the width of this bent over portion or lip and the `widthof 'the slot in thesleeve, This remark, of course,

has a more particular reference to the parts when loosely assembled, because after the setting or locking of the structure upon the shaft andof the rings uponfthe sleeves there l is no ,further relative rotation, anda point is frequently reache'dwhen the sides of the slot in the sleeve are tightly clamped against the sides of the bent over lock. Certain differences in results are to be controlled or modified by which one of the parts overlapsv the other; whether the spacer overlaps theA sleeve or .whether the sleeve overlaps the spacer, as in the illustration.

In the 'construction shown in FiguresI 5 and 6 the inner ends of the adapter sleeves,

100, are rabbeted for fitting corresponding rabbets on the ends of the spacer, 120. The mating faces of the` tenons', 101 and 121,` formed by the rabbets on the sleeves and spacer are 102-122, for the reception ofva locking structure illustrated, in the form of`a wire, 123,l of suitablel length uniting these parts.

In this form of construction theconnection of slits, 201, in the spacer ispreferably bent over into slot, 180, and between theends of the wire so that the wire .is securely held in position and in most instances practically obscure from view. The presence of the lip,

120, in the slot also prevents or limits, as is above explained,.`the angular movement of the connected parts.

vIn many oftheprevious attempts at'conl necting-together in 'spaced relation two compressible adapter sleeves it has been found g necessary to longitudinally slot the spacing member." The flexible connectionl of my de` sign permits the use of a solid tubeifor the spacer; in application.

`One of the drawbacks in assemblingprevously existing structures of the. general.

character of this invention hasbeenfthe jamming of the taper bored inner ring upon the taper of the adapter sleeve. This jamming is the result of many things which arevincircumferentially grooved,

' This adds to economy and facilty` Lacasse,

cidental to the application of the structure and -to its shipping and handling. If the box does not slide readily along the shaft, owing to the shaft being a little large in diameter, the most natural thingA is to strike the exposed side face or end of the nut.v `This immediately aggravates the difculty by driving the lring up on the taper ofthe sleeve causing the Vlatter to compress and hug the shaft more tightly. A very slight blow sometimes causes the .parts to seize the shaft at a position `far inadvance ofthe final location, and a good ,deal of manipula-I1 1 tion has to be resorted to before the parts can be returned to theirnormal position for mounting. If thestruc'ture ispermitted to fall-on its end one or both of the 'bearings will tighten on the sleeve andattempts. to" free the bearing which has tightened frequently lead rather to the tightening of the .other than the accomplishment. of the relief; of the first one. The accidental tightening' occurs in transportation and also occ-'urs when the Structure is unpacked; Most everyone Iwants tdstand the thing which hefunpacks up on its end, and when the previously existing structures 'were stood on their 'ends .with-the amount of force which such a sturdy structure would appear to warrant,` one or the ther of the bearing rings tightened on its adaptersleeve. According to my design, however, eachof thenuts, 21, for forcing the bearing-rings up on the tapers, 9, of the `adapter, sleeves, 10,-is so connected to the inner ring, 1, that while the ring is capable of independent radial and angular motionit cannot movef longitudinally or i axially of the shaft, 3, independently of its tion of the nut, 21, relatively to vthe ring, y7, permitted,y but there is a certain amount of nut. rlhis'may properly be called :a swivel' connection because the fastening between the -nut and ring is socontrived as toI allowV either ofthe fastening parts to` turn freely around on itsaxis independently of the other. This permits of 'such original assembly of the structureby its manufacturer that,` the greatest amount 'of freedom in mounting l.

may be enjoyed.- Not only is the free rotaliexibility `or wobble which vfacilitatels''assemby: t. i Intheillst'ration the inneifrir-1'gv ball. bearing is of theA standard-` dimensions. lIt,how

narrower. land, 22. The Aoutwardly?facin portion vwhere out' is formed `with lafgroov'e,

" 23, for receiving an inturned lip, 24, carried--1 by theside face of the nut. The nut is screw threaded for engagingthe iscrew ltlireaded extension, 11,'{of thel 4'adapter sleeve andat the endopposite. its engagement with-the bearing .ring has an extension, 25, forprolooting loutwardly ofl .thev closure, 6,' of the ousing. Such extension ia` shown formed with Spanner holes, and with tapped holes for set screws,v28, for preventing the nut backing off. The nut has a square -radial face, 29, for squarelyengaging lthe radial face, 30, of the bearing ring for forcing this up on'the taper of the adapter sleeve. The drawingoil action for dis-assembly is not so severe as is 'the pressurev of clamping, consequently the engagement between the parts, 24 and 31,1is sucient .for this purpose.

' The3best method which l havediscovered o r' connecting the nut and. bearing ring is to .formthesesubstantially as shown in -Figurel 4 ofthe drawings, there being a round- `inged'ge, 32,"on the extension of the nut.

`'lfhe'parts are then placed in assembled position 'anda strong.. squeezing pressure,'either ;by'lpress or bythe application of a blow,

in the drawings and herein described is to' be regarded as illustrative ofthe invention,

consequently changes 4in detail Within the scope of the claims may be resorted to. as occasion demands. ff; Claims- -Y l. A bearing mounting comprising a. pair of adapter sleeves positively and-flexibly' articulated together.

2. A bearing mounting comprising a pair 0f adapter sleeves and a-space'r positively and iexibly connecting ,the sleeves. -3. A bearing mountingzcomprising a pair of adapter sleeves anda spacer interposed 'between thepsleeves and' positively and flexipbly articulatedgto leach sleeve.

Q4. A bearing -mounting comprising a pair of adapter sleeves and a y'spacer so positively and flexibly connecting the 'fsleevesas 'to pervvmita.restrictedamount of relativeya'ngular :and laxialmove-ine1'1tof the sleeves..

5. Ab'earing Iriounting'compri'sing-a pair of adapterfsleeres and a spacerof -substan-` y Y F. tiallyftllbular-form .positivelyfarticulated to A-'bearing mounting comprising'a pair fffadlipter sleeves'l eachl vhaving a i taper por- 'n fo'rfittingthe-taper boreljofan adapterving; a spacer of tubular fo'rmation insleeves, the abutting 7 endsof the1sleeves -and 4 the spacer `overla'ppir'ig one-another and' formed with vmating"-"fshoulders in inter- -lockedrelation for -flexibly holding the 1` parts' `together.

,-7. A. bearing mountin- .comprising-'al pair fof-[adapter sleeves each aving a taper portionf for fitting the taper bore of an adapter substantially solid posed between the larger ends ofthe adapter sleeves, the. abutting ends bearing andfa sci aw threaded extension atthe smaller end of the taper portion, such sleeves being slit longitudinally, a spacer of tubular formation inter-v of the sleeves and the spacer overlapping one another and formed with mating shoulders in interlocked relation for flexibly holding the parts together.

8. A bearingmounting'compi'ising a pair of adapter sleeves each having a taper portion for fitting the taper bore of an adapter bea-ring and a screw sleeves being slit longitudinally, a 4spaber of tubular formation .interposed between the larger ends of the adapter sleeves, the

abutting ends of the sleeves and spacer overlapping one another and formed with registering grooves, such grooves for 'flexibly holding the parts together.

9. A bearing mounting comprising a pair of adapter sleeves each'having a taper por-v tion for fitting the taper bore of an adapter bearing and a screw threaded extension at Y adapter adapter istering grooves,

vgether,

spacer' being bent into the slot .in the portion such grooves vforflexibly holding the parts the voverlapping portion of adapter sleeve for interposition between the ends of the wire for locking this in position and for preventing relativeangular movement of the sleeve and spacer.

10. A bearing mounting 4comprising a casing for surrounding a shaft, a pair of adapter bearings mounted inwthe casing,

adapter sleeves for' interposition between the bearings. and the shaft,and aspacer positively and flexibly connecting the adapter sleeves.'

11. A bearingy mounting comprising -a casing for surrounding a.shaft, a pair' of sleeves for interposition between the'bearings andthe shaft, and a spacer connecting the'adapter sleevesin such a way that 'the .connectionis retained in the abf threaded extension atV the smaller end of the taper portion such and a wire located in a spacer of the. abutbearings mounted in thexcasing,

L messes vsence of a supportand so as to permit a `restricted amount of relative angular andax ial movementl of such sleeves.

12. A bearing mounting .comprising a casingffor surrounding a shaft, a pair ot adapter adapter sleeves for interposition between ythe bearings 'and the shaft, a spacer so connecting the adapter sleeves as to permit a restricted' amount `of-relative angular' and axialI movement of such sleeves, and nuts having screw threaded'engagement/with the adapter sleevesand .being flexibly onnected bearings mounted in th'e casing,

to the rings of the bearings mounted thereon.

13. A bearing mounting, comprising a pair of adapter sleeves, a spacer connecting the sleeves in such a way that the connection is retained in the absence f a support. and so as topermit a restricted amount of relative angularand axial movement of the sleeves, an adapter bearing [mounted on each of the sleeves', and a nut. having screw .threaded connection with eachsleeve and engaging the`ring of the bearing mounted thereon.

14. A. bearing mounting comprising a pair of adapter sleeves, a spacer. flexibly connecting the adapter sleeves, an adapter bearing mounted upon each Sleeve, and a nut having screw threaded connection with the sleeve .and a swivel connection with the .bearing ring' mounted thereon.

15. IA baring mounting comprising an adapter bearing, the i'nner ring having a taper bore, an' adapter sleeve fitted`to suol taper bore and having a bored seat for a shaft and a .screw threadedextension at the smaller ,end of the taper, a nut mounted on such screw threaded extension, the side ot' the ring adjacent the nut being formed with an. outwardly directed flange'and a groove inwardly of such flange the nut having a flange shrunk into such' groove. l 16. A bearing. mounting comprising a pair of positively connected adapter' sleeves, an .adapter `bearing mounted upon each Sleeve, andv -anut vhaving screw threaded v.connection with the sleeve and a swivel connection with the bearing' ring' |mounted thereon.

I n testimony '-whereof I have signed my name at Hartford, this 19th day of December, 1924.

` 'KARL A. staunen. 

